shttp/

Examples for HTTP over SCION/QUIC

This directory contains small example programs that show how HTTP can be used over SCION/QUIC for servers, proxies, and clients:

• fileserver: a server that serves the files from its working directory
• proxy: a proxy server that can translate between HTTP and HTTP-over-SCION
• server: a server with friendly greetings and other examples
• client: a client that talks to the example server

See also the package shttp for the underlaying library code.

Build:

Clone the repository netsec-ethz/scion-apps and build the eaxample applications:

git clone https://github.com/netsec-ethz/scion-apps.git
cd scion-apps
make example-shttp-fileserver \
        example-shttp-proxy \
        example-shttp-server \
        example-shttp-client

Running:

All examples require a running SCION endhost stack, i.e. a running SCION dispatcher and SCION daemon. Please refer to 'Running' in this repository's main README and the SCIONLab tutorials to get started.

Generic file server example

Run example-shttp-fileserver:

bin/example-shttp-fileserver

See 'Environment' on how to set the dispatcher and sciond environment variables in the server's AS.

Build scion-bat as a client for example-shttp-fileserver:

make scion-bat

See also the application 'bat' for more details on the cURL-like CLI tool scion-bat.

Access example-shttp-fileserver with scion-bat:

bin/scion-bat 17-ffaa:1:a,[127.0.0.1]:443/

Replace '17-ffaa:1:a' with your server's ISD and AS numbers and see 'Environment' on how to set the dispatcher and sciond environment variables in the client's (or proxy's) AS.

Run example-shttp-proxy to provide example-shttp-fileserver functionality via HTTP:

bin/example-shttp-proxy --remote=17-ffaa:1:a,[127.0.0.1]:443 --local=0.0.0.0:8080

Access example-shttp-fileserver via HTTP with cURL:

curl -v http://127.0.0.1:8080/

(Or navigate to http://127.0.0.1:8080/ in a web browser.)

example-shttp-proxy can also be used as a proxy from SCION to HTTP, from SCION to SCION, and from HTTP to HTTP. See package shttp for more details.

Simple shttp-based server example

Open a shell in the root of the scion-apps repository and run example-shttp-server:

cd _examples/shttp/server
go run .

Open a new shell in the scion-apps repository and access example-shttp-server with scion-bat:

bin/scion-bat 17-ffaa:1:a,[127.0.0.1]:443/hello

or

bin/scion-bat 17-ffaa:1:a,[127.0.0.1]:443/json

or

bin/scion-bat -f 17-ffaa:1:a,[127.0.0.1]:443/form foo=bar

Run the custom example-shttp-client for example-shttp-server:

bin/example-shttp-client -s 17-ffaa:1:a,[127.0.0.1]:443

Run example-shttp-proxy to provide bin/example-shttp-server functionality via HTTP:

bin/example-shttp-proxy --remote=17-ffaa:1:a,[127.0.0.1]:443 --local=0.0.0.0:8080

Access example-shttp-server via HTTP with cURL:

curl http://127.0.0.1:8080/hello

or

curl http://127.0.0.1:8080/json

or

curl -d foo=bar http://127.0.0.1:8080/form

And, finally, to see the cute dog picture:

Navigate to http://127.0.0.1:8080/image in a web browser.